I have an older Pfaff (with IDT) but I would not buy another Pfaff because of the company's attitude toward customer service (what customer service?) The new machines (at least some of them) do not have the same value as the older ones. I can feel the difference - maybe not everyone can.
My Pfaff is now the backup machine and yes, I do miss the IDT. However, my new Babylock Espire (which is now marketed as the Symphonie) has so many features and sews so smoothly that I don't mind attaching the external walking foot.
I also tried the Janomes and Vikings before making my decision. Already knew that Bernina was not for me.
Have you checked out patternreview.com? They have tons of reviews on all sorts of machines.